Claude Code 2.1.321 ships Fable 5.2 as the default Fable model and names
Mythos 5.2 as its current Mythos model. Without manifest entries Paseo
listed neither, and normalized a runtime claude-fable-5-2 to
claude-fable-5, so a session on Fable 5.2 was recorded and labeled as
Fable 5.
Fable 5.2 is gated on Claude Code 2.1.321. Mythos 5.2 stays behind
discovery like Mythos 5.1. Both get a 1M context window, always-on
thinking with high default effort, and fast mode, matching what Claude
Code advertises. Fable 5.1 becomes the previous release.
(cherry picked from commit a79b0fa3d8)